Patch by Ilya Tikhonovsky <loislo@chromium.org> Original issue http://codereview.chromium.org/593108 TBR=sgjesse@chromium.org Review URL: http://codereview.chromium.org/608012 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3870 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
344 lines
10 KiB
C++
344 lines
10 KiB
C++
// Copyright 2006-2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <stdlib.h>
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#include <wchar.h> // wint_t
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#include "v8.h"
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#include "compiler.h"
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#include "execution.h"
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#include "factory.h"
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#include "platform.h"
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#include "top.h"
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#include "cctest.h"
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using namespace v8::internal;
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static v8::Persistent<v8::Context> env;
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// --- P r i n t E x t e n s i o n ---
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class PrintExtension : public v8::Extension {
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public:
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PrintExtension() : v8::Extension("v8/print", kSource) { }
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virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
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v8::Handle<v8::String> name);
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static v8::Handle<v8::Value> Print(const v8::Arguments& args);
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private:
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static const char* kSource;
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};
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const char* PrintExtension::kSource = "native function print();";
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v8::Handle<v8::FunctionTemplate> PrintExtension::GetNativeFunction(
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v8::Handle<v8::String> str) {
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return v8::FunctionTemplate::New(PrintExtension::Print);
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}
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v8::Handle<v8::Value> PrintExtension::Print(const v8::Arguments& args) {
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for (int i = 0; i < args.Length(); i++) {
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if (i != 0) printf(" ");
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v8::HandleScope scope;
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v8::Handle<v8::Value> arg = args[i];
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v8::Handle<v8::String> string_obj = arg->ToString();
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if (string_obj.IsEmpty()) return string_obj;
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int length = string_obj->Length();
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uint16_t* string = NewArray<uint16_t>(length + 1);
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string_obj->Write(string);
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for (int j = 0; j < length; j++)
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printf("%lc", static_cast<wint_t>(string[j]));
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DeleteArray(string);
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}
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printf("\n");
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return v8::Undefined();
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}
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static PrintExtension kPrintExtension;
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v8::DeclareExtension kPrintExtensionDeclaration(&kPrintExtension);
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static void InitializeVM() {
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if (env.IsEmpty()) {
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v8::HandleScope scope;
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const char* extensions[] = { "v8/print", "v8/gc" };
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v8::ExtensionConfiguration config(2, extensions);
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env = v8::Context::New(&config);
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}
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v8::HandleScope scope;
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env->Enter();
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}
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static Object* GetGlobalProperty(const char* name) {
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Handle<String> symbol = Factory::LookupAsciiSymbol(name);
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return Top::context()->global()->GetProperty(*symbol);
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}
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static void SetGlobalProperty(const char* name, Object* value) {
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Handle<Object> object(value);
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Handle<String> symbol = Factory::LookupAsciiSymbol(name);
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Handle<JSObject> global(Top::context()->global());
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SetProperty(global, symbol, object, NONE);
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}
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static Handle<JSFunction> Compile(const char* source) {
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Handle<String> source_code(Factory::NewStringFromUtf8(CStrVector(source)));
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Handle<JSFunction> boilerplate =
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Compiler::Compile(source_code, Handle<String>(), 0, 0, NULL, NULL);
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return Factory::NewFunctionFromBoilerplate(boilerplate,
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Top::global_context());
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}
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static double Inc(int x) {
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const char* source = "result = %d + 1;";
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EmbeddedVector<char, 512> buffer;
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OS::SNPrintF(buffer, source, x);
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Handle<JSFunction> fun = Compile(buffer.start());
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if (fun.is_null()) return -1;
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bool has_pending_exception;
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Handle<JSObject> global(Top::context()->global());
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Execution::Call(fun, global, 0, NULL, &has_pending_exception);
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CHECK(!has_pending_exception);
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return GetGlobalProperty("result")->Number();
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}
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TEST(Inc) {
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InitializeVM();
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v8::HandleScope scope;
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CHECK_EQ(4.0, Inc(3));
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}
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static double Add(int x, int y) {
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Handle<JSFunction> fun = Compile("result = x + y;");
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if (fun.is_null()) return -1;
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SetGlobalProperty("x", Smi::FromInt(x));
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SetGlobalProperty("y", Smi::FromInt(y));
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bool has_pending_exception;
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Handle<JSObject> global(Top::context()->global());
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Execution::Call(fun, global, 0, NULL, &has_pending_exception);
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CHECK(!has_pending_exception);
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return GetGlobalProperty("result")->Number();
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}
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TEST(Add) {
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InitializeVM();
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v8::HandleScope scope;
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CHECK_EQ(5.0, Add(2, 3));
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}
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static double Abs(int x) {
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Handle<JSFunction> fun = Compile("if (x < 0) result = -x; else result = x;");
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if (fun.is_null()) return -1;
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SetGlobalProperty("x", Smi::FromInt(x));
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bool has_pending_exception;
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Handle<JSObject> global(Top::context()->global());
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Execution::Call(fun, global, 0, NULL, &has_pending_exception);
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CHECK(!has_pending_exception);
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return GetGlobalProperty("result")->Number();
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}
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TEST(Abs) {
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InitializeVM();
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v8::HandleScope scope;
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CHECK_EQ(3.0, Abs(-3));
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}
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static double Sum(int n) {
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Handle<JSFunction> fun =
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Compile("s = 0; while (n > 0) { s += n; n -= 1; }; result = s;");
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if (fun.is_null()) return -1;
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SetGlobalProperty("n", Smi::FromInt(n));
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bool has_pending_exception;
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Handle<JSObject> global(Top::context()->global());
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Execution::Call(fun, global, 0, NULL, &has_pending_exception);
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CHECK(!has_pending_exception);
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return GetGlobalProperty("result")->Number();
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}
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TEST(Sum) {
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InitializeVM();
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v8::HandleScope scope;
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CHECK_EQ(5050.0, Sum(100));
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}
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TEST(Print) {
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InitializeVM();
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v8::HandleScope scope;
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const char* source = "for (n = 0; n < 100; ++n) print(n, 1, 2);";
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Handle<JSFunction> fun = Compile(source);
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if (fun.is_null()) return;
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bool has_pending_exception;
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Handle<JSObject> global(Top::context()->global());
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Execution::Call(fun, global, 0, NULL, &has_pending_exception);
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CHECK(!has_pending_exception);
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}
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// The following test method stems from my coding efforts today. It
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// tests all the functionality I have added to the compiler today
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TEST(Stuff) {
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InitializeVM();
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v8::HandleScope scope;
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const char* source =
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"r = 0;\n"
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"a = new Object;\n"
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"if (a == a) r+=1;\n" // 1
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"if (a != new Object()) r+=2;\n" // 2
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"a.x = 42;\n"
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"if (a.x == 42) r+=4;\n" // 4
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"function foo() { var x = 87; return x; }\n"
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"if (foo() == 87) r+=8;\n" // 8
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"function bar() { var x; x = 99; return x; }\n"
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"if (bar() == 99) r+=16;\n" // 16
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"function baz() { var x = 1, y, z = 2; y = 3; return x + y + z; }\n"
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"if (baz() == 6) r+=32;\n" // 32
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"function Cons0() { this.x = 42; this.y = 87; }\n"
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"if (new Cons0().x == 42) r+=64;\n" // 64
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"if (new Cons0().y == 87) r+=128;\n" // 128
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"function Cons2(x, y) { this.sum = x + y; }\n"
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"if (new Cons2(3,4).sum == 7) r+=256;"; // 256
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Handle<JSFunction> fun = Compile(source);
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CHECK(!fun.is_null());
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bool has_pending_exception;
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Handle<JSObject> global(Top::context()->global());
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Execution::Call(fun, global, 0, NULL, &has_pending_exception);
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CHECK(!has_pending_exception);
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CHECK_EQ(511.0, GetGlobalProperty("r")->Number());
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}
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TEST(UncaughtThrow) {
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InitializeVM();
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v8::HandleScope scope;
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const char* source = "throw 42;";
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Handle<JSFunction> fun = Compile(source);
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CHECK(!fun.is_null());
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bool has_pending_exception;
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Handle<JSObject> global(Top::context()->global());
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Handle<Object> result =
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Execution::Call(fun, global, 0, NULL, &has_pending_exception);
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CHECK(has_pending_exception);
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CHECK_EQ(42.0, Top::pending_exception()->Number());
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}
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// Tests calling a builtin function from C/C++ code, and the builtin function
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// performs GC. It creates a stack frame looks like following:
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// | C (PerformGC) |
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// | JS-to-C |
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// | JS |
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// | C-to-JS |
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TEST(C2JSFrames) {
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InitializeVM();
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v8::HandleScope scope;
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const char* source = "function foo(a) { gc(), print(a); }";
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Handle<JSFunction> fun0 = Compile(source);
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CHECK(!fun0.is_null());
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// Run the generated code to populate the global object with 'foo'.
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bool has_pending_exception;
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Handle<JSObject> global(Top::context()->global());
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Execution::Call(fun0, global, 0, NULL, &has_pending_exception);
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CHECK(!has_pending_exception);
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Handle<Object> fun1 =
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Handle<Object>(
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Top::context()->global()->GetProperty(
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*Factory::LookupAsciiSymbol("foo")));
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CHECK(fun1->IsJSFunction());
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Object** argv[1] = {
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Handle<Object>::cast(Factory::LookupAsciiSymbol("hello")).location()
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};
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Execution::Call(Handle<JSFunction>::cast(fun1), global, 1, argv,
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&has_pending_exception);
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CHECK(!has_pending_exception);
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}
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// Regression 236. Calling InitLineEnds on a Script with undefined
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// source resulted in crash.
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TEST(Regression236) {
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InitializeVM();
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v8::HandleScope scope;
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Handle<Script> script = Factory::NewScript(Factory::empty_string());
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script->set_source(Heap::undefined_value());
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CHECK_EQ(-1, GetScriptLineNumber(script, 0));
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CHECK_EQ(-1, GetScriptLineNumber(script, 100));
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CHECK_EQ(-1, GetScriptLineNumber(script, -1));
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}
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TEST(GetScriptLineNumber) {
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LocalContext env;
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v8::HandleScope scope;
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v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test"));
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const char function_f[] = "function f() {}";
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const int max_rows = 1000;
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const int buffer_size = max_rows + sizeof(function_f);
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ScopedVector<char> buffer(buffer_size);
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memset(buffer.start(), '\n', buffer_size - 1);
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buffer[buffer_size - 1] = '\0';
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for (int i = 0; i < max_rows; ++i) {
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if (i > 0)
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buffer[i - 1] = '\n';
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memcpy(&buffer[i], function_f, sizeof(function_f) - 1);
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v8::Handle<v8::String> script_body = v8::String::New(buffer.start());
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v8::Script::Compile(script_body, &origin)->Run();
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v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(
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env->Global()->Get(v8::String::New("f")));
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CHECK_EQ(i, f->GetScriptLineNumber());
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}
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}
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